Celebrity Alter Egos

The multi-talented star channels her inner diva, Sasha Fierce, when she performs onstage.

"I have someone else that takes over when it's time for me to work and when I'm on stage, this alter ego that I've created that kind of protects me and who I really am."

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Christina Aguilera / Xtina

This pop star decided to shed her wholesome image in 2002 with the release of her album Stripped. During this time, she referred to herself as Xtina, even getting a tattoo of her nickname on the back of her neck.

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Miley Cyrus / Hannah Montana

Whether she's just being Miley or rocking the stage as Hannah Montana on her hit Disney series, this pop star shows no signs of slowing down.

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Mariah Carey / Mimi

When Carey released her tenth studio album, The Emancipation of Mimi, she revealed that "Mimi" was a nickname used only by close friends and relatives, adding that she wanted the title of the album to be "representative of where I'm at as an artist. This is the fun side, the real me, and not the image and the baggage that comes with the whole 'Mariah Carey' thing."

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Marshall Mathers / Eminem / Slim Shady

The rap star originally performed under the pseudonym "M&M," which evolved into his stage name, "Eminem."

"Slim Shady is just the evil thoughts that come into my head. Things I shouldn't be thinking about. Not to be gimmicky, but people should be able to determine when I'm serious and when I'm not. That's why a lot of my songs are funny. I got a warped sense of humor I guess." -- On his alter ego, Slim Shady.

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Jennifer Lopez / Lola

Ever since the release of Lopez's second album, J.Lo, the nickname has stuck. Now, the triple-threat star has given herself an alternate personality to go along with her upcoming album, Love?.

Lopez has shed light on her new alter ego, Lola, via Twitter:

"Lola here. What's my deal? Well, wouldn't you like to know…" she wrote.

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David Bowie / Ziggy Stardust

In 1972, Bowie released the concept album, The Rise and Fall of Ziggy Stardust and the Spiders from Mars, where he donned his famous flaming red mullet and wild outfits.

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Courtney Love / Cherry KooKoo

The eccentric singer took to her MySpace blog to inform her fans that she's taken on a crazy alter ego named Cherry Kookoo!